Package org.apache.cassandra.cql3.selection

Class VectorSelector

java.lang.Object

org.apache.cassandra.cql3.selection.Selector

org.apache.cassandra.cql3.selection.VectorSelector

public class VectorSelector
extends Selector

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.cassandra.cql3.selection.Selector

Selector.Factory, Selector.InputRow, Selector.Kind, Selector.SelectorDeserializer, Selector.Serializer

Field Summary

Fields

Modifier and Type	Field	Description
protected static final Selector.SelectorDeserializer	deserializer

Fields inherited from class org.apache.cassandra.cql3.selection.Selector

serializer

Method Summary

Modifier and Type	Method	Description
void	addFetchedColumns(ColumnFilter.Builder builder)	Add to the provided builder the column (and potential subselections) to fetch for this selection.
void	addInput(Selector.InputRow input)	Add the current value from the specified ResultSetBuilder.
boolean	equals(Object o)
ByteBuffer	getOutput(ProtocolVersion protocolVersion)	Returns the selector output.
AbstractType<?>	getType()	Returns the Selector output type.
int	hashCode()
boolean	isTerminal()	A selector is terminal if it doesn't require any input for it's output to be computed, i.e.
static Selector.Factory	newFactory(AbstractType<?> type, org.apache.cassandra.cql3.selection.SelectorFactories factories)
void	reset()	Reset the internal state of this Selector.
protected void	serialize(DataOutputPlus out, int version)
protected int	serializedSize(int version)
String	toString()

Methods inherited from class org.apache.cassandra.cql3.selection.Selector

getTTLs, getWritetimes, kind, sizeOf, validateForGroupBy, writeType

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

deserializer

protected static final Selector.SelectorDeserializer deserializer

Method Details

newFactory

public static Selector.Factory newFactory(AbstractType<?> type,
 org.apache.cassandra.cql3.selection.SelectorFactories factories)

addFetchedColumns

public void addFetchedColumns(ColumnFilter.Builder builder)

Description copied from class: Selector

Add to the provided builder the column (and potential subselections) to fetch for this selection.

Specified by:

addFetchedColumns in class Selector

Parameters:

builder - the builder to add columns and subselections to.

addInput

public void addInput(Selector.InputRow input)

Description copied from class: Selector

Add the current value from the specified ResultSetBuilder.

Specified by:

addInput in class Selector

Parameters:

input - the input row

getType

public AbstractType<?> getType()

Description copied from class: Selector

Returns the Selector output type.

Specified by:

getType in class Selector

Returns:

the Selector output type.

reset

public void reset()

Description copied from class: Selector

Reset the internal state of this Selector.

Specified by:

reset in class Selector

getOutput

public ByteBuffer getOutput(ProtocolVersion protocolVersion)
                     throws InvalidRequestException

Description copied from class: Selector

Returns the selector output.

Specified by:

getOutput in class Selector

Parameters:

protocolVersion - protocol version used for serialization

Returns:

the selector output

Throws:

InvalidRequestException - if a problem occurs while computing the output value

serializedSize

protected int serializedSize(int version)

Specified by:

serializedSize in class Selector

serialize

protected void serialize(DataOutputPlus out,
 int version)
                  throws IOException

Specified by:

serialize in class Selector

Throws:

IOException

isTerminal

public boolean isTerminal()

Description copied from class: Selector

A selector is terminal if it doesn't require any input for it's output to be computed, i.e. if Selector.getOutput(org.apache.cassandra.transport.ProtocolVersion) result doesn't depend of Selector.addInput(org.apache.cassandra.cql3.selection.Selector.InputRow). This is typically the case of a constant value or functions on constant values.

Overrides:

isTerminal in class Selector

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object